(2x-3y)(x+5y)=0 where x>0 and y>0 find the ratio x:y give your answer in it's simplest form

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?